1023012011 has 16 divisors (see below), whose sum is σ = 1221817344. Its totient is φ = 838240704.

The previous prime is 1023012007. The next prime is 1023012049. The reversal of 1023012011 is 1102103201.

It is not a de Polignac number, because 1023012011 - 2² = 1023012007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023011983 and 1023012001.

It is not an unprimeable number, because it can be changed into a prime (1023012311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22010 + ... + 50303.

It is an arithmetic number, because the mean of its divisors is an integer number (76363584).

Almost surely, 2^1023012011 is an apocalyptic number.

1023012011 is a deficient number, since it is larger than the sum of its proper divisors (198805333).

1023012011 is an equidigital number, since it uses as much as digits as its factorization.

1023012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72410.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1023012011 is about 31984.5589464667. The cubic root of 1023012011 is about 1007.6125720278.

Adding to 1023012011 its reverse (1102103201), we get a palindrome (2125115212).

The spelling of 1023012011 in words is "one billion, twenty-three million, twelve thousand, eleven".